81142516

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{222919}}^1$

素因数の和:222943

約数の個数: 24

約数和(自身を含む): 174769280

約数和(自身を除く): 93626764

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 222919, 445838, 891676, 1560433, 2897947, 3120866, 5795894, 6241732, 11591788, 20285629, 40571258, 81142516]

約数ペア:

[(1, 81142516), (2, 40571258), (4, 20285629), (7, 11591788), (13, 6241732), (14, 5795894), (26, 3120866), (28, 2897947), (52, 1560433), (91, 891676), (182, 445838), (364, 222919)]